WO is better because it's family. It has a ridiculous preponderance of weird uncles, but it's still family.
My experience with family is a bit different.
Blood doesn't matter.
I've disinherited family from my estate.
Even family can be absolute garbage human.
Well, each person's family situation is a bit different, but generally, if there is a family trait that you would like to be preserved, then you would care, probably.
Somehow, in my extended family there are a lot of engineers and scientists, and I like this quite a bit. Too bad my own kids are not into sciences at all.
I promised myself that if I "make it" in bitcoin, etc, I would help kids in the extended family to get the best education they aim at (in cooperation with their parents, of course).